Waldemar OSTERBY Odense Odensa Denmark

Waldemar OSTERBY Odense Odensa Denmark

Looking for info on Waldemar OSTERBY born in Odense (Odensa ?), Denmark, July 25, 1871. Married to Ada A. Gill of Sea Cliff, LI, NY USA about October 1902. Any info please let me know. I would also like some tips of continuing my research in Denmark.